<template>
  <view v-if="goods_info.goods_name" class="goods-detail-container">
    <!-- 轮播图区域-->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,i) in goods_info.pics" :key="i">
        <image :src="item.pics_big" @click="preview(i)"></image>
      </swiper-item>
     
    </swiper>
    
    
    <view class="goods-info-box">
      <!-- 商品价格 -->
      <view class="price">￥{{goods_info.goods_price}}</view>
      <!-- 信息主体区域 -->
      <view class="goods-info-body">
        <!-- 商品名称 -->
        <view class="goods-name">{{goods_info.goods_name}}</view>
        <!-- 收藏 -->
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <!-- 运费 -->
      <view class="yf">快递：免运费</view>
    </view>
    <rich-text :nodes="goods_info.goods_introduce"></rich-text>
  <!-- 商品导航组件-->
  <view class="goods_nav">
     <uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick" @buttonClick="buttonClick" />
  </view>
  </view>
</template>



<!-- // 从 vuex 中按需导出 mapState 辅助方法
import { mapState } from 'vuex'

export default {
  computed: {
    // 调用 mapState 方法，把 m_cart 模块中的 cart 数组映射到当前页面中，作为计算属性来使用
    // ...mapState('模块的名称', ['要映射的数据名称1', '要映射的数据名称2'])
    ...mapState('m_cart', ['cart']),
  }, -->
<script>
  import {mapState,mapMutations,mapGetters} from 'vuex'
  export default {
    computed:{//计算属性
      ...mapState('m_cart',['cart']),
      ...mapGetters('m_cart',['total'])
    },
    
    //watch监听器
    watch: {
       // 定义 total 侦听器，指向一个配置对象
       total: {
          // handler 属性用来定义侦听器的 function 处理函数
          handler(newVal) {
             const findResult = this.options.find(x => x.text === '购物车')
             if (findResult) {
                findResult.info = newVal
             }
          },
          // immediate 属性用来声明此侦听器，是否在页面初次加载完毕后立即调用
          immediate: true
       }
    },
    
    data() {
      return {
          // 商品详情对象
           goods_info: {},
           // 左侧按钮组的配置对象
           options: [{
             icon: 'shop',
             text: '店铺'
           }, {
             icon: 'cart',
             text: '购物车',
             info: 0
           }],
           // 右侧按钮组的配置对象
           buttonGroup: [{
               text: '加入购物车',
               backgroundColor: '#ff0000',
               color: '#fff'
             },
             {
               text: '立即购买',
               backgroundColor: '#ffa200',
               color: '#fff'
             }
           ]
       }
    },//data 
    onLoad(options) {
      const goods_id=options.goods_id
      this.getgoodsdetail(goods_id)
    },//onload
    methods:{
      ...mapMutations('m_cart',['addToCart']),
      
     async getgoodsdetail(goods_id){
      const{data:res} =await uni.$http.get('/api/public/v1/goods/detail',{goods_id:goods_id})
      if(res.meta.status!==200)
      return uni.$showMsg()
      //通过正则表达式将数据字符串替换
     res.message.goods_introduce= res.message.goods_introduce.replace(/<img /g,'<img style="display:block"').replace(/webp/g,'jpg')
      
      this.goods_info=res.message
      },
        
      preview(i){
        uni.previewImage({
          current:i,
          urls:this.goods_info.pics.map(x=>x.pics_big) //返回一个值用x来代替
        })
      },
      //点击购物车按钮
      onClick(e){
       if(e.content.text==="购物车"){
         uni.switchTab({
           url:'/pages/cart/cart'
         })
       }
      },
      //加入购物车点击事件
      buttonClick(e){
        if(e.content.text==="加入购物车")
        //组织商品的信息对象
         // { goods_id, goods_name, goods_price, goods_count, goods_small_logo, goods_state }
{         const goods={
     goods_id: this.goods_info.goods_id,       // 商品的Id
     goods_name: this.goods_info.goods_name,   // 商品的名称
     goods_price: this.goods_info.goods_price, // 商品的价格
     goods_count: 1,                           // 商品的数量
    goods_small_logo: this.goods_info.goods_small_logo, // 商品的图片
    goods_state: true                         // 商品的勾选状态
         }
         //调用addtocart方法
         this.addToCart(goods)
         }
      }
    }//methods
  }
</script>

<style lang="scss">
swiper{
  height: 750rpx;
  image{
    height: 100%;
    width: 100%;
  }
}
.goods-info-box {
  padding: 10px;
  padding-right: 0;

  .price {
    color: #c00000;
    font-size: 18px;
    margin: 10px 0;
  }

  .goods-info-body {
    display: flex;
    justify-content: space-between;

    .goods-name {
      font-size: 13px;
      padding-right: 10px;
    }
    // 收藏区域
    .favi {
      width: 120px;
      font-size: 12px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      border-left: 1px solid #7fd1ef;
      color: gray;
    }
  }

  // 运费
  .yf {
    margin: 10px 0;
    font-size: 12px;
    color: gray;
  }
  
  }
  .goods_nav{
    position: fixed;  //固定定位
    bottom: 0;
    left: 0;
    width: 100%;
}
.goods-detail-container{
  padding-bottom: 50px;
}
</style>
